Adding upstream version 5:7.0.15.upstream/5%7.0.15upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 589 insertions, 0 deletions

diff --git a/src/script.c b/src/script.c
new file mode 100644
index 0000000..45fbdb5
--- /dev/null
+++ b/src/script.c
@@ -0,0 +1,589 @@
+/*
+ * Copyright (c) 2009-2021, Redis Ltd.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *   * Neither the name of Redis nor the names of its contributors may be used
+ *     to endorse or promote products derived from this software without
+ *     specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "server.h"
+#include "script.h"
+#include "cluster.h"
+
+scriptFlag scripts_flags_def[] = {
+    {.flag = SCRIPT_FLAG_NO_WRITES, .str = "no-writes"},
+    {.flag = SCRIPT_FLAG_ALLOW_OOM, .str = "allow-oom"},
+    {.flag = SCRIPT_FLAG_ALLOW_STALE, .str = "allow-stale"},
+    {.flag = SCRIPT_FLAG_NO_CLUSTER, .str = "no-cluster"},
+    {.flag = SCRIPT_FLAG_ALLOW_CROSS_SLOT, .str = "allow-cross-slot-keys"},
+    {.flag = 0, .str = NULL}, /* flags array end */
+};
+
+/* On script invocation, holding the current run context */
+static scriptRunCtx *curr_run_ctx = NULL;
+
+static void exitScriptTimedoutMode(scriptRunCtx *run_ctx) {
+    serverAssert(run_ctx == curr_run_ctx);
+    serverAssert(scriptIsTimedout());
+    run_ctx->flags &= ~SCRIPT_TIMEDOUT;
+    blockingOperationEnds();
+    /* if we are a replica and we have an active master, set it for continue processing */
+    if (server.masterhost && server.master) queueClientForReprocessing(server.master);
+}
+
+static void enterScriptTimedoutMode(scriptRunCtx *run_ctx) {
+    serverAssert(run_ctx == curr_run_ctx);
+    serverAssert(!scriptIsTimedout());
+    /* Mark script as timedout */
+    run_ctx->flags |= SCRIPT_TIMEDOUT;
+    blockingOperationStarts();
+}
+
+int scriptIsTimedout() {
+    return scriptIsRunning() && (curr_run_ctx->flags & SCRIPT_TIMEDOUT);
+}
+
+client* scriptGetClient() {
+    serverAssert(scriptIsRunning());
+    return curr_run_ctx->c;
+}
+
+client* scriptGetCaller() {
+    serverAssert(scriptIsRunning());
+    return curr_run_ctx->original_client;
+}
+
+/* interrupt function for scripts, should be call
+ * from time to time to reply some special command (like ping)
+ * and also check if the run should be terminated. */
+int scriptInterrupt(scriptRunCtx *run_ctx) {
+    if (run_ctx->flags & SCRIPT_TIMEDOUT) {
+        /* script already timedout
+           we just need to precess some events and return */
+        processEventsWhileBlocked();
+        return (run_ctx->flags & SCRIPT_KILLED) ? SCRIPT_KILL : SCRIPT_CONTINUE;
+    }
+
+    long long elapsed = elapsedMs(run_ctx->start_time);
+    if (elapsed < server.busy_reply_threshold) {
+        return SCRIPT_CONTINUE;
+    }
+
+    serverLog(LL_WARNING,
+            "Slow script detected: still in execution after %lld milliseconds. "
+                    "You can try killing the script using the %s command. Script name is: %s.",
+            elapsed, (run_ctx->flags & SCRIPT_EVAL_MODE) ? "SCRIPT KILL" : "FUNCTION KILL", run_ctx->funcname);
+
+    enterScriptTimedoutMode(run_ctx);
+    /* Once the script timeouts we reenter the event loop to permit others
+     * some commands execution. For this reason
+     * we need to mask the client executing the script from the event loop.
+     * If we don't do that the client may disconnect and could no longer be
+     * here when the EVAL command will return. */
+    protectClient(run_ctx->original_client);
+
+    processEventsWhileBlocked();
+
+    return (run_ctx->flags & SCRIPT_KILLED) ? SCRIPT_KILL : SCRIPT_CONTINUE;
+}
+
+uint64_t scriptFlagsToCmdFlags(uint64_t cmd_flags, uint64_t script_flags) {
+    /* If the script declared flags, clear the ones from the command and use the ones it declared.*/
+    cmd_flags &= ~(CMD_STALE | CMD_DENYOOM | CMD_WRITE);
+
+    /* NO_WRITES implies ALLOW_OOM */
+    if (!(script_flags & (SCRIPT_FLAG_ALLOW_OOM | SCRIPT_FLAG_NO_WRITES)))
+        cmd_flags |= CMD_DENYOOM;
+    if (!(script_flags & SCRIPT_FLAG_NO_WRITES))
+        cmd_flags |= CMD_WRITE;
+    if (script_flags & SCRIPT_FLAG_ALLOW_STALE)
+        cmd_flags |= CMD_STALE;
+
+    /* In addition the MAY_REPLICATE flag is set for these commands, but
+     * if we have flags we know if it's gonna do any writes or not. */
+    cmd_flags &= ~CMD_MAY_REPLICATE;
+
+    return cmd_flags;
+}
+
+/* Prepare the given run ctx for execution */
+int scriptPrepareForRun(scriptRunCtx *run_ctx, client *engine_client, client *caller, const char *funcname, uint64_t script_flags, int ro) {
+    serverAssert(!curr_run_ctx);
+
+    int running_stale = server.masterhost &&
+            server.repl_state != REPL_STATE_CONNECTED &&
+            server.repl_serve_stale_data == 0;
+    int obey_client = mustObeyClient(caller);
+
+    if (!(script_flags & SCRIPT_FLAG_EVAL_COMPAT_MODE)) {
+        if ((script_flags & SCRIPT_FLAG_NO_CLUSTER) && server.cluster_enabled) {
+            addReplyError(caller, "Can not run script on cluster, 'no-cluster' flag is set.");
+            return C_ERR;
+        }
+
+        if (running_stale && !(script_flags & SCRIPT_FLAG_ALLOW_STALE)) {
+            addReplyError(caller, "-MASTERDOWN Link with MASTER is down, "
+                             "replica-serve-stale-data is set to 'no' "
+                             "and 'allow-stale' flag is not set on the script.");
+            return C_ERR;
+        }
+
+        if (!(script_flags & SCRIPT_FLAG_NO_WRITES)) {
+            /* Script may perform writes we need to verify:
+             * 1. we are not a readonly replica
+             * 2. no disk error detected
+             * 3. command is not `fcall_ro`/`eval[sha]_ro` */
+            if (server.masterhost && server.repl_slave_ro && !obey_client) {
+                addReplyError(caller, "-READONLY Can not run script with write flag on readonly replica");
+                return C_ERR;
+            }
+
+            /* Deny writes if we're unale to persist. */
+            int deny_write_type = writeCommandsDeniedByDiskError();
+            if (deny_write_type != DISK_ERROR_TYPE_NONE && !obey_client) {
+                if (deny_write_type == DISK_ERROR_TYPE_RDB)
+                    addReplyError(caller, "-MISCONF Redis is configured to save RDB snapshots, "
+                                     "but it's currently unable to persist to disk. "
+                                     "Writable scripts are blocked. Use 'no-writes' flag for read only scripts.");
+                else
+                    addReplyErrorFormat(caller, "-MISCONF Redis is configured to persist data to AOF, "
+                                           "but it's currently unable to persist to disk. "
+                                           "Writable scripts are blocked. Use 'no-writes' flag for read only scripts. "
+                                           "AOF error: %s", strerror(server.aof_last_write_errno));
+                return C_ERR;
+            }
+
+            if (ro) {
+                addReplyError(caller, "Can not execute a script with write flag using *_ro command.");
+                return C_ERR;
+            }
+
+            /* Don't accept write commands if there are not enough good slaves and
+             * user configured the min-slaves-to-write option. */
+            if (server.masterhost == NULL &&
+                server.repl_min_slaves_max_lag &&
+                server.repl_min_slaves_to_write &&
+                server.repl_good_slaves_count < server.repl_min_slaves_to_write)
+            {
+                addReplyErrorObject(caller, shared.noreplicaserr);
+                return C_ERR;
+            }
+        }
+
+        /* Check OOM state. the no-writes flag imply allow-oom. we tested it
+         * after the no-write error, so no need to mention it in the error reply. */
+        if (server.pre_command_oom_state && server.maxmemory &&
+            !(script_flags & (SCRIPT_FLAG_ALLOW_OOM|SCRIPT_FLAG_NO_WRITES)))
+        {
+            addReplyError(caller, "-OOM allow-oom flag is not set on the script, "
+                                  "can not run it when used memory > 'maxmemory'");
+            return C_ERR;
+        }
+
+    } else {
+        /* Special handling for backwards compatibility (no shebang eval[sha]) mode */
+        if (running_stale) {
+            addReplyErrorObject(caller, shared.masterdownerr);
+            return C_ERR;
+        }
+    }
+
+    run_ctx->c = engine_client;
+    run_ctx->original_client = caller;
+    run_ctx->funcname = funcname;
+
+    client *script_client = run_ctx->c;
+    client *curr_client = run_ctx->original_client;
+    server.script_caller = curr_client;
+
+    /* Select the right DB in the context of the Lua client */
+    selectDb(script_client, curr_client->db->id);
+    script_client->resp = 2; /* Default is RESP2, scripts can change it. */
+
+    /* If we are in MULTI context, flag Lua client as CLIENT_MULTI. */
+    if (curr_client->flags & CLIENT_MULTI) {
+        script_client->flags |= CLIENT_MULTI;
+    }
+
+    run_ctx->start_time = getMonotonicUs();
+    run_ctx->snapshot_time = mstime();
+
+    run_ctx->flags = 0;
+    run_ctx->repl_flags = PROPAGATE_AOF | PROPAGATE_REPL;
+
+    if (ro || (!(script_flags & SCRIPT_FLAG_EVAL_COMPAT_MODE) && (script_flags & SCRIPT_FLAG_NO_WRITES))) {
+        /* On fcall_ro or on functions that do not have the 'write'
+         * flag, we will not allow write commands. */
+        run_ctx->flags |= SCRIPT_READ_ONLY;
+    }
+    if (!(script_flags & SCRIPT_FLAG_EVAL_COMPAT_MODE) && (script_flags & SCRIPT_FLAG_ALLOW_OOM)) {
+        /* Note: we don't need to test the no-writes flag here and set this run_ctx flag,
+         * since only write commands can are deny-oom. */
+        run_ctx->flags |= SCRIPT_ALLOW_OOM;
+    }
+
+    if ((script_flags & SCRIPT_FLAG_EVAL_COMPAT_MODE) || (script_flags & SCRIPT_FLAG_ALLOW_CROSS_SLOT)) {
+        run_ctx->flags |= SCRIPT_ALLOW_CROSS_SLOT;
+    }
+
+    /* set the curr_run_ctx so we can use it to kill the script if needed */
+    curr_run_ctx = run_ctx;
+
+    return C_OK;
+}
+
+/* Reset the given run ctx after execution */
+void scriptResetRun(scriptRunCtx *run_ctx) {
+    serverAssert(curr_run_ctx);
+
+    /* After the script done, remove the MULTI state. */
+    run_ctx->c->flags &= ~CLIENT_MULTI;
+
+    server.script_caller = NULL;
+
+    if (scriptIsTimedout()) {
+        exitScriptTimedoutMode(run_ctx);
+        /* Restore the client that was protected when the script timeout
+         * was detected. */
+        unprotectClient(run_ctx->original_client);
+    }
+
+    preventCommandPropagation(run_ctx->original_client);
+
+    /*  unset curr_run_ctx so we will know there is no running script */
+    curr_run_ctx = NULL;
+}
+
+/* return true if a script is currently running */
+int scriptIsRunning() {
+    return curr_run_ctx != NULL;
+}
+
+const char* scriptCurrFunction() {
+    serverAssert(scriptIsRunning());
+    return curr_run_ctx->funcname;
+}
+
+int scriptIsEval() {
+    serverAssert(scriptIsRunning());
+    return curr_run_ctx->flags & SCRIPT_EVAL_MODE;
+}
+
+/* Kill the current running script */
+void scriptKill(client *c, int is_eval) {
+    if (!curr_run_ctx) {
+        addReplyError(c, "-NOTBUSY No scripts in execution right now.");
+        return;
+    }
+    if (mustObeyClient(curr_run_ctx->original_client)) {
+        addReplyError(c,
+                "-UNKILLABLE The busy script was sent by a master instance in the context of replication and cannot be killed.");
+        return;
+    }
+    if (curr_run_ctx->flags & SCRIPT_WRITE_DIRTY) {
+        addReplyError(c,
+                "-UNKILLABLE Sorry the script already executed write "
+                        "commands against the dataset. You can either wait the "
+                        "script termination or kill the server in a hard way "
+                        "using the SHUTDOWN NOSAVE command.");
+        return;
+    }
+    if (is_eval && !(curr_run_ctx->flags & SCRIPT_EVAL_MODE)) {
+        /* Kill a function with 'SCRIPT KILL' is not allow */
+        addReplyErrorObject(c, shared.slowscripterr);
+        return;
+    }
+    if (!is_eval && (curr_run_ctx->flags & SCRIPT_EVAL_MODE)) {
+        /* Kill an eval with 'FUNCTION KILL' is not allow */
+        addReplyErrorObject(c, shared.slowevalerr);
+        return;
+    }
+    curr_run_ctx->flags |= SCRIPT_KILLED;
+    addReply(c, shared.ok);
+}
+
+static int scriptVerifyCommandArity(struct redisCommand *cmd, int argc, sds *err) {
+    if (!cmd || ((cmd->arity > 0 && cmd->arity != argc) || (argc < -cmd->arity))) {
+        if (cmd)
+            *err = sdsnew("Wrong number of args calling Redis command from script");
+        else
+            *err = sdsnew("Unknown Redis command called from script");
+        return C_ERR;
+    }
+    return C_OK;
+}
+
+static int scriptVerifyACL(client *c, sds *err) {
+    /* Check the ACLs. */
+    int acl_errpos;
+    int acl_retval = ACLCheckAllPerm(c, &acl_errpos);
+    if (acl_retval != ACL_OK) {
+        addACLLogEntry(c,acl_retval,ACL_LOG_CTX_LUA,acl_errpos,NULL,NULL);
+        *err = sdscatfmt(sdsempty(), "The user executing the script %s", getAclErrorMessage(acl_retval));
+        return C_ERR;
+    }
+    return C_OK;
+}
+
+static int scriptVerifyWriteCommandAllow(scriptRunCtx *run_ctx, char **err) {
+
+    /* A write command, on an RO command or an RO script is rejected ASAP.
+     * Note: For scripts, we consider may-replicate commands as write commands.
+     * This also makes it possible to allow read-only scripts to be run during
+     * CLIENT PAUSE WRITE. */
+    if (run_ctx->flags & SCRIPT_READ_ONLY &&
+        (run_ctx->c->cmd->flags & (CMD_WRITE|CMD_MAY_REPLICATE)))
+    {
+        *err = sdsnew("Write commands are not allowed from read-only scripts.");
+        return C_ERR;
+    }
+
+    /* The other checks below are on the server state and are only relevant for
+     *  write commands, return if this is not a write command. */
+    if (!(run_ctx->c->cmd->flags & CMD_WRITE))
+        return C_OK;
+
+    /* If the script already made a modification to the dataset, we can't
+     * fail it on unpredictable error state. */
+    if ((run_ctx->flags & SCRIPT_WRITE_DIRTY))
+        return C_OK;
+
+    /* Write commands are forbidden against read-only slaves, or if a
+     * command marked as non-deterministic was already called in the context
+     * of this script. */
+    int deny_write_type = writeCommandsDeniedByDiskError();
+
+    if (server.masterhost && server.repl_slave_ro &&
+        !mustObeyClient(run_ctx->original_client))
+    {
+        *err = sdsdup(shared.roslaveerr->ptr);
+        return C_ERR;
+    }
+
+    if (deny_write_type != DISK_ERROR_TYPE_NONE) {
+        *err = writeCommandsGetDiskErrorMessage(deny_write_type);
+        return C_ERR;
+    }
+
+    /* Don't accept write commands if there are not enough good slaves and
+     * user configured the min-slaves-to-write option. Note this only reachable
+     * for Eval scripts that didn't declare flags, see the other check in
+     * scriptPrepareForRun */
+    if (!checkGoodReplicasStatus()) {
+        *err = sdsdup(shared.noreplicaserr->ptr);
+        return C_ERR;
+    }
+
+    return C_OK;
+}
+
+static int scriptVerifyOOM(scriptRunCtx *run_ctx, char **err) {
+    if (run_ctx->flags & SCRIPT_ALLOW_OOM) {
+        /* Allow running any command even if OOM reached */
+        return C_OK;
+    }
+
+    /* If we reached the memory limit configured via maxmemory, commands that
+     * could enlarge the memory usage are not allowed, but only if this is the
+     * first write in the context of this script, otherwise we can't stop
+     * in the middle. */
+
+    if (server.maxmemory &&                            /* Maxmemory is actually enabled. */
+        !mustObeyClient(run_ctx->original_client) &&   /* Don't care about mem for replicas or AOF. */
+        !(run_ctx->flags & SCRIPT_WRITE_DIRTY) &&      /* Script had no side effects so far. */
+        server.pre_command_oom_state &&                /* Detected OOM when script start. */
+        (run_ctx->c->cmd->flags & CMD_DENYOOM))
+    {
+        *err = sdsdup(shared.oomerr->ptr);
+        return C_ERR;
+    }
+
+    return C_OK;
+}
+
+static int scriptVerifyClusterState(scriptRunCtx *run_ctx, client *c, client *original_c, sds *err) {
+    if (!server.cluster_enabled || mustObeyClient(original_c)) {
+        return C_OK;
+    }
+    /* If this is a Redis Cluster node, we need to make sure the script is not
+     * trying to access non-local keys, with the exception of commands
+     * received from our master or when loading the AOF back in memory. */
+    int error_code;
+    /* Duplicate relevant flags in the script client. */
+    c->flags &= ~(CLIENT_READONLY | CLIENT_ASKING);
+    c->flags |= original_c->flags & (CLIENT_READONLY | CLIENT_ASKING);
+    int hashslot = -1;
+    if (getNodeByQuery(c, c->cmd, c->argv, c->argc, &hashslot, &error_code) != server.cluster->myself) {
+        if (error_code == CLUSTER_REDIR_DOWN_RO_STATE) {
+            *err = sdsnew(
+                    "Script attempted to execute a write command while the "
+                            "cluster is down and readonly");
+        } else if (error_code == CLUSTER_REDIR_DOWN_STATE) {
+            *err = sdsnew("Script attempted to execute a command while the "
+                    "cluster is down");
+        } else {
+            *err = sdsnew("Script attempted to access a non local key in a "
+                    "cluster node");
+        }
+        return C_ERR;
+    }
+
+    /* If the script declared keys in advanced, the cross slot error would have
+     * already been thrown. This is only checking for cross slot keys being accessed
+     * that weren't pre-declared. */
+    if (hashslot != -1 && !(run_ctx->flags & SCRIPT_ALLOW_CROSS_SLOT)) {
+        if (original_c->slot == -1) {
+            original_c->slot = hashslot;
+        } else if (original_c->slot != hashslot) {
+            *err = sdsnew("Script attempted to access keys that do not hash to "
+                    "the same slot");
+            return C_ERR;
+        }
+    }
+    return C_OK;
+}
+
+/* set RESP for a given run_ctx */
+int scriptSetResp(scriptRunCtx *run_ctx, int resp) {
+    if (resp != 2 && resp != 3) {
+        return C_ERR;
+    }
+
+    run_ctx->c->resp = resp;
+    return C_OK;
+}
+
+/* set Repl for a given run_ctx
+ * either: PROPAGATE_AOF | PROPAGATE_REPL*/
+int scriptSetRepl(scriptRunCtx *run_ctx, int repl) {
+    if ((repl & ~(PROPAGATE_AOF | PROPAGATE_REPL)) != 0) {
+        return C_ERR;
+    }
+    run_ctx->repl_flags = repl;
+    return C_OK;
+}
+
+static int scriptVerifyAllowStale(client *c, sds *err) {
+    if (!server.masterhost) {
+        /* Not a replica, stale is irrelevant */
+        return C_OK;
+    }
+
+    if (server.repl_state == REPL_STATE_CONNECTED) {
+        /* Connected to replica, stale is irrelevant */
+        return C_OK;
+    }
+
+    if (server.repl_serve_stale_data == 1) {
+        /* Disconnected from replica but allow to serve data */
+        return C_OK;
+    }
+
+    if (c->cmd->flags & CMD_STALE) {
+        /* Command is allow while stale */
+        return C_OK;
+    }
+
+    /* On stale replica, can not run the command */
+    *err = sdsnew("Can not execute the command on a stale replica");
+    return C_ERR;
+}
+
+/* Call a Redis command.
+ * The reply is written to the run_ctx client and it is
+ * up to the engine to take and parse.
+ * The err out variable is set only if error occurs and describe the error.
+ * If err is set on reply is written to the run_ctx client. */
+void scriptCall(scriptRunCtx *run_ctx, sds *err) {
+    client *c = run_ctx->c;
+
+    /* Setup our fake client for command execution */
+    c->user = run_ctx->original_client->user;
+
+    /* Process module hooks */
+    moduleCallCommandFilters(c);
+
+    struct redisCommand *cmd = lookupCommand(c->argv, c->argc);
+    c->cmd = c->lastcmd = c->realcmd = cmd;
+    if (scriptVerifyCommandArity(cmd, c->argc, err) != C_OK) {
+        goto error;
+    }
+
+    /* There are commands that are not allowed inside scripts. */
+    if (!server.script_disable_deny_script && (cmd->flags & CMD_NOSCRIPT)) {
+        *err = sdsnew("This Redis command is not allowed from script");
+        goto error;
+    }
+
+    if (scriptVerifyAllowStale(c, err) != C_OK) {
+        goto error;
+    }
+
+    if (scriptVerifyACL(c, err) != C_OK) {
+        goto error;
+    }
+
+    if (scriptVerifyWriteCommandAllow(run_ctx, err) != C_OK) {
+        goto error;
+    }
+
+    if (scriptVerifyOOM(run_ctx, err) != C_OK) {
+        goto error;
+    }
+
+    if (cmd->flags & CMD_WRITE) {
+        /* signify that we already change the data in this execution */
+        run_ctx->flags |= SCRIPT_WRITE_DIRTY;
+    }
+
+    if (scriptVerifyClusterState(run_ctx, c, run_ctx->original_client, err) != C_OK) {
+        goto error;
+    }
+
+    int call_flags = CMD_CALL_SLOWLOG | CMD_CALL_STATS;
+    if (run_ctx->repl_flags & PROPAGATE_AOF) {
+        call_flags |= CMD_CALL_PROPAGATE_AOF;
+    }
+    if (run_ctx->repl_flags & PROPAGATE_REPL) {
+        call_flags |= CMD_CALL_PROPAGATE_REPL;
+    }
+    call(c, call_flags);
+    serverAssert((c->flags & CLIENT_BLOCKED) == 0);
+    return;
+
+error:
+    afterErrorReply(c, *err, sdslen(*err), 0);
+    incrCommandStatsOnError(cmd, ERROR_COMMAND_REJECTED);
+}
+
+/* Returns the time when the script invocation started */
+mstime_t scriptTimeSnapshot() {
+    serverAssert(curr_run_ctx);
+    return curr_run_ctx->snapshot_time;
+}
+
+long long scriptRunDuration() {
+    serverAssert(scriptIsRunning());
+    return elapsedMs(curr_run_ctx->start_time);
+}